H3 can also be used as an image edit model and its surprisingly good.

V1 - A simple image edit

• For V1 there are no additional requirements outside of regular minimax models

V2 - Image editing with references

• V2 uses an experimental VAE which is tailored towards Image gen

• Up to nine reference images can be used

Prompting
Tell the model what you want to change / add / remove, then tell it what to keep.

Change the wave explosion in the background into an erupting volcano. Preserve the composition, lighting, style, facial expressions and backgrounds.

Resolution
Note that H3 only accepts specific image sizes natively, if your image is of a different size/resolution it is automatically rescaled but the result might have a difference in quality.

• 608 x 352

• 736 x 416

• 864 x 480

• 960 x 544

• 1056 x 608

• 1152 x 640

• 1216 x 672

• 1280 x 736

• 1344 x 768

• 1376 x 768

• 1504 x 832

• 1664 x 928

• 824 x 1024

• 1920 x 1088

Performance
At 1280p it takes me around 24 seconds, I'm using an RTX 5080 16gigs and 64gigs RAM.